US Bridges

Greenwood Road over South Br. Flint River

Good

Lapeer County, Michigan · Sec. 14-23 Lapeer Twp. · Structure no. 000000000005433

Built
1981
44 years old
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
215
2018 count
Owner
County
County Highway Agency

About this bridge

Greenwood Road over South Br. Flint River is a prestressed concrete box beam or girders - multiple carrying Greenwood Road over South Br. Flint River in Lapeer County, Michigan. It was built in 1981, so it is 44 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 215 vehicles a day, projected to reach 262 by 2038. The structure is 40 ft (12.2 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesGreenwood Road
CrossesSouth Br. Flint River
LocationSec. 14-23 Lapeer Twp.
RouteCounty Highway 0
CountyLapeer County
StateMichigan
Coordinates43.01549, -83.25983
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating62.2 US tons
Inventory rating37.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span38 ft (11.5 m)
Deck width31 ft (9.4 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic215 (2018)
Projected traffic262 by 2038
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Greenwood Road over South Br. Flint River built?

It was built in 1981, making it 44 years old in 2025.

What condition is Greenwood Road over South Br. Flint River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does Greenwood Road over South Br. Flint River carry?

About 215 vehicles per day (2018 count).

How long is Greenwood Road over South Br. Flint River?

The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.5 m) and a deck 31 ft wide.

Who owns Greenwood Road over South Br. Flint River?

It is owned by the County Highway Agency.